Canadians were shocked by Donald Trump's outburst about Justin Trudeau. Canada and the United States have been allies for more than a century, but there have been disputes between presidents and PMs.
After the G7 fiasco, it's clear that a trade war is in the making. US justifications of "national security concerns" for its tariffs suggest a legitimate target for EU countermeasures: coal.
International trade policy requires three traits to be successful and lead to mutual prosperity. Trump's is missing all three, as he showed at the G-7 summit.
A political scientist and economist explores the causes and consequences of Trump's scattershot trade policy.